EPC-9 Threaded 8.3" 9mm Complete Upper Receiver w/ ATLAS S-ONE 7.3" Handguard DESCRIPTION This EPC-9 Complete Upper Receiver comes standard with our ATLAS S-ONE Handguard. The S-ONE handguards are designed with size and weight in mind, while still providing plenty of real-estate to accommodate any attachment needs the end user may have. Our proprietary ATLAS attachment system is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards. Includes: EPC-9 Upper Receiver 7.3" ATLAS S-ONE Handguard 8.3" 9mm CMV Barrel Product comes assembled This complete upper receiver does not include BCG or Charging Handle. These products may be selected as add-ons under the FINISH YOUR BUILD tab. The muzzle device included with this complete upper receiver is NOT pinned nor welded to this barrel. EPC-9 Upper Receiver Features: Last round bolt hold open mechanism Accepts most AR15 compatible barrel nuts and handguards Dimple above threads to allow for proper handguard timing Standard AR15 takedown/pivot pin lug pattern Machined from custom forged 7075-T6 aluminum ATLAS S-ONE Handguard Features: Front and rear picatinny rail Eliminated center of top rail for weight reduction Indexing grooves in 12:00 position for positive grip control Quick disconnect sling socket at the 3, 6 and 9 o'clock positions 1.3" Inside diameter 1.5" Outside diameter Compatible with mil-spec AR15 upper receivers and barrels 8.3" 9mm Barrel Features Chamber: 9x19 Length: 8.3" Twist: 1 in 10 Threading: 1/2"x28 Material: Chrome Moly Vanadium Finish: QPQ corrosion resistant finish both inside and out SPECS Specs Shipping to FFL Dealer Required No Made In America? Yes Platform EPC-9 Weight(s) 29.5 oz Other N/A